rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Evaluation of allowable taper rates of freestanding single-slope concrete barriers
  title info:
    title: Roadside Safety Device Analysis, Testing, and Evaluation Program
  name:
    name part: Bligh, Roger P.
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Cakalli, Sofokli
    role:
      role term: author.
  name:
    name part: Sheikh, Nauman Mansoor
    role:
      role term: author.
  name:
    name part: Schroeder, William J. L.
    role:
      role term: author.
  name:
    name part: Kuhn, Darrell L.
    role:
      role term: author.
  name:
    name part: Texas
    name part: Department of Transportation.
    name part: Research and Technology Implementation Office,
    role:
      role term: sponsoring body.
  name:
    name part: United States
    name part: Federal Highway Administration,
    role:
      role term: sponsoring body.
  name:
    name part: Texas A & M Transportation Institute
    role:
      role term: publisher.
  type of resource: text
  genre: technical report
  genre: Technical reports.
  origin info:
    place:
      place term: txu
    date issued: 2023
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource (xi, 88 pages) : illustrations (some color)
  abstract: The Texas Department of Transportation desires to flare the ends of its freestanding single-slope concrete barrier system so the system can be terminated outside the clear zone. Currently, limited guidance exists on the acceptable flare rate for the single-slope portable concrete barrier under the American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) 2016 guidelines. This project evaluated flare rates for portable, freestanding, single-slope concrete barriers through finite element impact simulations and full-scale crash testing. This report presents details of the simulation work and the full-scale crash testing performed under the project. The purpose of the tests reported herein was to assess the performance of the freestanding flared single-slope portable concrete barriers according to the safety-performance evaluation guidelines included in the AASHTO MASH, Second Edition (1). The crash tests were performed in accordance with MASH Test Level 3 (TL-3), which requires two crash tests: 1. MASH Test 3-10: An 1100C vehicle weighing 2420 lb, impacting the longitudinal barrier while traveling at 62 mi/h and 25 degrees. 2. MASH Test 3-11: A 2270P vehicle weighing 5000 lb, impacting the longitudinal barrier while traveling at 62 mi/h and 25 degrees. This report provides details on the flared single-slope portable concrete barriers, the crash tests and results, and the performance assessment of the flared single-slope portable concrete barriers for MASH TL-3 longitudinal barrier evaluation criteria. The flared single-slope portable concrete barriers met the performance criteria for MASH TL-3 longitudinal barriers.
  note: by Roger P. Bligh, P.E., Senior Research Engineer, Sofokli Cakalli, Assistant Research Scientist, Nauman M. Sheikh, P.E., Research Engineer, William J. L. Schroeder, Research Engineering Associate and Darrell L. Kuhn, P.E., Research Specialist, Texas A&M Transportation Institute.
  note: Open access content Open access content star
  note: Technical report; June 2022-August 2022.
  note: Sponsored by the Texas Department of Transportation and the Federal Highway Administration 0-7086-R2.
  subject:
    geographic code: n-us-tx
  subject:
    topic: Roads
    topic: Guard fences
    topic: Impact testing
  subject:
    topic: Concrete
    topic: Impact testing
  subject:
    topic: Flares
    topic: Testing
  subject:
    topic: Trucks
    topic: Crash tests
    geographic: Texas
  subject:
    topic: Roads
    topic: Crash cushions
    topic: Impact testing
  subject:
    topic: Traffic safety
    topic: Safety measures
    topic: Testing
  subject:
    topic: Barriers (Roads)
  subject:
    topic: Portable equipment
  subject:
    topic: Impact tests
  related item:
    title info:
      title: Research report (Austin, Tex.) ; no. 440862-03 3-4
  identifier: https://tti.tamu.edu/documents/0-7086-R2.pdf
  access condition: Open access content
  record info:
    record content source: NATTR
    record creation date: 240101
    record change date: 20240125202706.9
    record identifier: in00004766264
    language of cataloging:
      language term: eng